80words=1min so you would multiply 80 by 20 which is 1,600 words for 20 minutes
Answer:
2^52
Step-by-step explanation:
(8^-5/2^-2)^-4 = (2^-15/2^-2)^-4= (2^-13)^-4= 2^((-13*(-4))= 2^52
Answer:
1152
Step-by-step explanation:
4 boys and 4 girls be arranged in a row such that no two boys and no two girls are next to each other.
Two boys and two girls are not next to each other. so one boy and one girl are next to each other in two ways.
BGBGBGBG, GBGBGBGB
4 boys are arranged in 4! ways and 4 girls are arranged in 4! ways
So number of ways = 
<span>2 ( x-2 ) = 6
Use distributive property.
2x - 4 = 6
Add 4 to both sides
2x = 10
Divide 2 on both sides so that the only thing remaining on the left side is the variable x.
Final Answer: x = 5</span>